1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 6007d51d119b..e381f2fc121c 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -558,7 +558,8 @@ unsigned long prom_memparse(const char *ptr, const char **retptr)
 static void __init early_cmdline_parse(void)
 {
         struct prom_t *_prom = &RELOC(prom);
-        char *opt, *p;
+        const char *opt;
+        char *p;
         int l = 0;
 
         RELOC(prom_cmd_line[0]) = 0;